Ransomware Research

BadBlock Ransomware

BadBlock is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on May 1, 2016, this ransomware has been actively targeting systems worldwide.

Quick Facts

Ransomware Family
BadBlock
First Seen
May 1, 2016

How BadBlock Ransomware Works

Ransom Note and Payment Demands

After encrypting files, BadBlock displays ransom notes demanding payment for file recovery:

fileHelp Decrypt.html

Ransom message:

notes/Help Decrypt.html

Note locations:

EveryFolder
message

Ransom message:

notes/note.txt

Note locations:

Login

Technical Indicators

Associated Executable Files

The following executable files are associated with BadBlock ransomware:

  • BadBlock
  • badransom.ex_
  • badblock.exe
  • 192389573
  • badransom.exe
  • badblock.exe.exe

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About This Analysis

This BadBlock ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like BadBlock.

Last updated: October 30, 2025

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